This week we will be practising our adding. So far when we have been adding we have had 2 groups and to find the answer we have been counting them altogether.
Have a go at counting the smiley faces below to find the answer.
Can you add them altogether?
Remember that means to count them all.
What is the answer?
Can you put it in a number sentence?
This week we will learn to add by counting on. This means that when we count we won't be starting at 0. We will start with the number we have in the first group.
But before we do that we need to practise starting counting from different numbers.
We will play the I Count, You Count game.
In this game your adult counts to a number and you have to carry on with the same amount of numbers.
We don't always have to start at 0.
So if your adult says 1, 2, you would say 3, 4, the adult would say 5, 6 and you would say 7, 8.
If an adult says 5, 6, 7, you would say 8, 9, 10.
Adults practise using the numbers below.
1, 2, 3, 4
3, 4, 5
6, 7, 8, 9
During this week we will be using a number line to help us with our adding.
The last task for today is:
Can you make your own number line to use at home?
Can you put the numbers on there all by yourself?
We'd love to see pictures of these on your purple mash challenge blogs.
Today we will start learning about how to add by counting on.
When we are adding by counting on, it means that we won't always start at 1.
We have to see how many is in our first group and start at that number. We then count the rest to find out how many we have altogether.
If we always have to go back to number 1, sometimes we might forget how many we had.
We put the first number in our head and then with the second number we count that many objects and find out how many we have altogether.
We use the words first, then and now.
First 3 people were on the bus
Then 2 more got on
Now there are 5 people on the bus.
Watch this number jack video to try and help you understand.
Click on the picture.
Can you have a go at finding the answer to
First we had 4 boxes
Then mum gave us 3 more.
How many have we got now?
By counting on, you could use objects or a number line to help you.
Before we start you will need to collect some objects from around your house you can use to count. This could be lego, stones, anything. You will need up to 20 if you want to challenge yourself.
You will also need your number line you made.
When we are counting on we can use either objects, our fingers or a number line to help us.
Can you have a go at finding the answer by counting on?
Let's do an example together first:
The first thing we do is have 4 in our head.
and then we need 3 more objects to count on. I have elephants.
So we start on number 4 in our heads and then count on from 4 to find the answer.
5 6 7
The number we finished on is 7.
Now we have 7, so that is our answer.
We could also use a number line to help
We start on 4, we do 3 jumps and the number we land on is the answer. Which is 7.
Can you have a go?
If you could do the littler numbers now challenge yourself with bigger ones!
Use the powerpoints below to have a go at adding by counting on.
Can you challenge yourself using numbers to 20?
Today we are going to play a game by hiding objects. You will need to use your fingers or a number line to help you count on.
You will need:
- a blanket
- a range of objects
- Adult to count out a numbers of items. For example - 5
- Make sure the child knows you have 5, get them to count how many there is.
- Then cover them up.
- Check with your child that they are happy that there is still 5 objects under the blanket.
- Then whilst they are watching, add 2 more cubes under the blanket.
- Ask your child how many you have now. Encourage them to represent the cubes with their fingers and count on to find the answer.
(Start with 5 fingers, add 2 more by counting on. 5..... 6,7)
Ask the questions
How many cubes did we have at the start?
How many cubes did I add?
How many cubes will be under the blanket now?
How did you work it out?
Repeat with different numbers.
Here is an extra game to play when practising adding: